1 // Copyright (c) 2017 Google Inc. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SOURCE_OPT_ELIMINATE_DEAD_FUNCTIONS_PASS_H_ 16 #define SOURCE_OPT_ELIMINATE_DEAD_FUNCTIONS_PASS_H_ 17 18 #include "source/opt/def_use_manager.h" 19 #include "source/opt/function.h" 20 #include "source/opt/mem_pass.h" 21 #include "source/opt/module.h" 22 23 namespace spvtools { 24 namespace opt { 25 26 // See optimizer.hpp for documentation. 27 class EliminateDeadFunctionsPass : public MemPass { 28 public: name()29 const char* name() const override { return "eliminate-dead-functions"; } 30 Status Process() override; 31 GetPreservedAnalyses()32 IRContext::Analysis GetPreservedAnalyses() override { 33 return IRContext::kAnalysisDefUse | IRContext::kAnalysisConstants | 34 IRContext::kAnalysisTypes; 35 } 36 37 private: 38 void EliminateFunction(Function* func); 39 }; 40 41 } // namespace opt 42 } // namespace spvtools 43 44 #endif // SOURCE_OPT_ELIMINATE_DEAD_FUNCTIONS_PASS_H_ 45